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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">medgen</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинская генетика</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Genetics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7998</issn><publisher><publisher-name>Publishing House «Genius Media» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.1234/XXXX-XXXX-2015-11-3-8</article-id><article-id custom-type="elpub" pub-id-type="custom">medgen-63</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>НАУЧНЫЕ ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEW</subject></subj-group></article-categories><title-group><article-title>Фолатный цикл: обзор и практические рекомендации по интерпретации генетических тестов</article-title><trans-title-group xml:lang="en"><trans-title>Folate cycle: review and practical recommendations for the interpretation of genetic tests</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кох</surname><given-names>Н. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kokh</surname><given-names>N. V.</given-names></name></name-alternatives><email xlink:type="simple">natalikohh@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Слепухина</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Slepukhina</surname><given-names>A. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лифшиц</surname><given-names>Г. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Lifshits</surname><given-names>G. I.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт химической биологии и фундаментальной медицины СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Chemical Biology and Fundamental Medicine SBRAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>16</day><month>06</month><year>2016</year></pub-date><volume>14</volume><issue>11</issue><fpage>3</fpage><lpage>8</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Кох Н.В., Слепухина А.А., Лифшиц Г.И., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Кох Н.В., Слепухина А.А., Лифшиц Г.И.</copyright-holder><copyright-holder xml:lang="en">Kokh N.V., Slepukhina A.A., Lifshits G.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.medgen-journal.ru/jour/article/view/63">https://www.medgen-journal.ru/jour/article/view/63</self-uri><abstract><p>Многочисленные исследования ассоциаций однонуклеотидных полиморфизмов генов фолатного цикла с различными патологическими состояниями привели к предложениям тестирования генетических маркёров фолатного цикла для пациентов в рутинной практике. При этом существуют различия в интерпретации результатов, в некоторых случаях возникает неоднозначность понимания, какой конкретно маркёр был проанализирован. В данный обзор включены описание физиологических эффектов ферментов фолатного цикла, влияния наиболее исследованных полиморфных замен и вариант заключения при выявлении минорных аллелей у пациента.</p></abstract><trans-abstract xml:lang="en"><p>The existence of numerous studies the association of single nucleotide polymorphisms (SNP) of folate cycle with various pathological conditions has led to testing genetic markers of folate cycle for patients in routine practice in some laboratories. At the same time, there are some differences issuing opinions and interpretation of results, in some cases, there is ambiguity in understanding what specific marker was analyzed. This review includes a description of the physiological effects of folate cycle enzymes, the influence of the most studied polymorphic replacements and the option to enter into the detection of minor alleles in the patient.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>фолатный цикл</kwd><kwd>фолиевая кислота</kwd><kwd>полиморфизм</kwd><kwd>MTHFR</kwd><kwd>MTR</kwd><kwd>MTRR</kwd><kwd>folate cycle</kwd><kwd>polymorphism</kwd><kwd>folic acid</kwd><kwd>MTHFR</kwd><kwd>MTR</kwd><kwd>MTRR</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Болдырев А.А. Молекулярные механизмы токсичности гомоцистеина // Биохимия. - 2009. - Т. 74, №6. - С. 725-736.</mixed-citation><mixed-citation xml:lang="en">Болдырев А.А. 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